UIWebView 加载崩溃 [__NSCFDictionary _isChargeEnabled]
使用 UIWebView 加载此网站 http://www.xiaami.com/song/1024665
我有时 如果我触摸此网站中的视图或播放音频,我的应用程序就会崩溃,有时却不会,为什么?
是因为html5吗?怎么解决? 其他网站没问题。
崩溃日志是 * -[MPTransportButton _isChargeEnabled]:消息发送到已释放实例 0x20aa58d0
非常感谢任何帮助
---更新 ---
我创建一个新的基于视图的项目,ViewController 中的代码
如下,崩溃日志是
2011-08-16 18:11:25.450 WebTest[1291:707] -[__NSCFDictionary _isChargeEnabled]: unrecognized selector sent to instance 0x1ede0a10
2011-08-16 18:11:25.462 WebTest[1291:707] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFDictionary _isChargeEnabled]: unrecognized selector sent to instance 0x1ede0a10'
*** Call stack at first throw:
(
0 CoreFoundation 0x30ea764f __exceptionPreprocess + 114
1 libobjc.A.dylib 0x349c2c5d objc_exception_throw + 24
2 CoreFoundation 0x30eab1bf -[NSObject(NSObject) doesNotRecognizeSelector:] + 102
3 CoreFoundation 0x30eaa649 ___forwarding___ + 508
4 CoreFoundation 0x30e21180 _CF_forwarding_prep_0 + 48
5 UIKit 0x30f232bd -[UIWindow warpPoint:] + 200
6 UIKit 0x30f0c1d5 _UIApplicationHandleEvent + 2404
7 GraphicsServices 0x30790e77 PurpleEventCallback + 666
8 CoreFoundation 0x30e7ea97 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 26
9 CoreFoundation 0x30e8083f __CFRunLoopDoSource1 + 166
10 CoreFoundation 0x30e8160d __CFRunLoopRun + 520
11 CoreFoundation 0x30e11ec3 CFRunLoopRunSpecific + 230
12 CoreFoundation 0x30e11dcb CFRunLoopRunInMode + 58
13 GraphicsServices 0x3079041f GSEventRunModal + 114
14 GraphicsServices 0x307904cb GSEventRun + 62
15 UIKit 0x30f37d69 -[UIApplication _run] + 404
16 UIKit 0x30f35807 UIApplicationMain + 670
17 WebTest 0x00013425 main + 48
18 WebTest 0x000133f0 start + 40
)
terminate called after throwing an instance of 'NSException'
项目中的源代码,这次没有使用MPMoviePlayerController或者其他的
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [self init];
return self;
}
- (id)init
{
if (self = [super initWithNibName:nil bundle:nil])
{
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
UIWebView *web = [[UIWebView alloc] initWithFrame:CGRectMake(0, 0, 320, 460)];
[web loadRequest:[NSURLRequest requestWithURL:
[NSURL URLWithString:@"http://www.xiami.com/song/1024665"]]];
web.delegate = self;
[self.view addSubview:web];
[web release];
}
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
{
return YES;
}
- (void)webViewDidStartLoad:(UIWebView *)webView
{
}
- (void)webViewDidFinishLoad:(UIWebView *)webView
{
//[webView stringByEvaluatingJavaScriptFromString:@"window.scrollTo(0, 10);"];
}
- (void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error
{
}
I use UIWebView to load this site http://www.xiami.com/song/1024665
sometimes my app crashes if I touch the view or play the audio in this site and sometimes it does not, why?
is it because html5? how to solve?
other website is no problem.
crash log is
* -[MPTransportButton _isChargeEnabled]: message sent to deallocated instance 0x20aa58d0
any help is much appreciated
---update---
I create a new view-base project, the code in ViewController is as following
This time, the crash log is
2011-08-16 18:11:25.450 WebTest[1291:707] -[__NSCFDictionary _isChargeEnabled]: unrecognized selector sent to instance 0x1ede0a10
2011-08-16 18:11:25.462 WebTest[1291:707] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFDictionary _isChargeEnabled]: unrecognized selector sent to instance 0x1ede0a10'
*** Call stack at first throw:
(
0 CoreFoundation 0x30ea764f __exceptionPreprocess + 114
1 libobjc.A.dylib 0x349c2c5d objc_exception_throw + 24
2 CoreFoundation 0x30eab1bf -[NSObject(NSObject) doesNotRecognizeSelector:] + 102
3 CoreFoundation 0x30eaa649 ___forwarding___ + 508
4 CoreFoundation 0x30e21180 _CF_forwarding_prep_0 + 48
5 UIKit 0x30f232bd -[UIWindow warpPoint:] + 200
6 UIKit 0x30f0c1d5 _UIApplicationHandleEvent + 2404
7 GraphicsServices 0x30790e77 PurpleEventCallback + 666
8 CoreFoundation 0x30e7ea97 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 26
9 CoreFoundation 0x30e8083f __CFRunLoopDoSource1 + 166
10 CoreFoundation 0x30e8160d __CFRunLoopRun + 520
11 CoreFoundation 0x30e11ec3 CFRunLoopRunSpecific + 230
12 CoreFoundation 0x30e11dcb CFRunLoopRunInMode + 58
13 GraphicsServices 0x3079041f GSEventRunModal + 114
14 GraphicsServices 0x307904cb GSEventRun + 62
15 UIKit 0x30f37d69 -[UIApplication _run] + 404
16 UIKit 0x30f35807 UIApplicationMain + 670
17 WebTest 0x00013425 main + 48
18 WebTest 0x000133f0 start + 40
)
terminate called after throwing an instance of 'NSException'
the source code in the project, not use MPMoviePlayerController this time or something else
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [self init];
return self;
}
- (id)init
{
if (self = [super initWithNibName:nil bundle:nil])
{
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
UIWebView *web = [[UIWebView alloc] initWithFrame:CGRectMake(0, 0, 320, 460)];
[web loadRequest:[NSURLRequest requestWithURL:
[NSURL URLWithString:@"http://www.xiami.com/song/1024665"]]];
web.delegate = self;
[self.view addSubview:web];
[web release];
}
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
{
return YES;
}
- (void)webViewDidStartLoad:(UIWebView *)webView
{
}
- (void)webViewDidFinishLoad:(UIWebView *)webView
{
//[webView stringByEvaluatingJavaScriptFromString:@"window.scrollTo(0, 10);"];
}
- (void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error
{
}
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评论(1)
您发布的代码没有任何问题。
NSZombie
表示您的代码中的某处有一个MPTransportButton
之前已被释放(释放),之后,在代码中的其他位置,您想用它做一些事情。我认为您可以在
UIWebView
的委托方法之一中执行此操作。但是...我们需要更多代码。您在哪里
分配/初始化
您的MPMoviePlayerController
?或者你分配/初始化
一个MPTransportButton
?There's nothing wrong in code that you posted.
NSZombie
says that there is aMPTransportButton
somewhere in your code that was previously deallocated (released) and after that, somewhere else in your code, you want to do something with it.I think that you do it in one of your
UIWebView
's delegate methods.But... we need more code. Where do you
alloc/init
yourMPMoviePlayerController
? Or do youalloc/init
aMPTransportButton
?